Impacts of lactation physiology at higher and average yield on composition, properties and health indicators of milk in Holstein breed

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26788462%3A_____%2F10%3A%230000386" target="_blank" >RIV/26788462:_____/10:#0000386 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Impacts of lactation physiology at higher and average yield on composition, properties and health indicators of milk in Holstein breed

Popis výsledku v původním jazyce

The differences within milk indicators between high yielding herds with an average MY (H1 a H2) were tested in four herds. The files with 224 and 234 individual milk samples were collected in the summer and winter for three years. Group 1 had higher genetical value and had even better nutrition according to the MY. The MY was higher by 43% (P<0.001). The studied high MY factor had statistically significant influence (P<0.05 and P < 0.001) on the following milk parameters: fat (FAT), lactose (LAC), solids non fat (SNF), alcohol stability (AL), rennet curds firmnes (RCF), crude protein (CP), casein (CAS), true protein (TP), fat/true protein ratio (F/CP). Selected differences were: FAT (H1 3.68 ? 0.77; H2 3.99 ? 0.93%); CAS (H1 2.50 ? 0.27; H2 2.59 ? 0.29%); TP (H1 2.99 ? 0.30; H2 3.09 ? 0.33%). Other 16 milk parameters (e.g. SCC (H1 289 > 210 103.ml-1 H2), urine, ratio of urea nitrogen in the non protein nitrogen, acetone, pH and rennet curds firmness) were influenced insignificantly (P>

Název v anglickém jazyce

Impacts of lactation physiology at higher and average yield on composition, properties and health indicators of milk in Holstein breed

Popis výsledku anglicky

The differences within milk indicators between high yielding herds with an average MY (H1 a H2) were tested in four herds. The files with 224 and 234 individual milk samples were collected in the summer and winter for three years. Group 1 had higher genetical value and had even better nutrition according to the MY. The MY was higher by 43% (P<0.001). The studied high MY factor had statistically significant influence (P<0.05 and P < 0.001) on the following milk parameters: fat (FAT), lactose (LAC), solids non fat (SNF), alcohol stability (AL), rennet curds firmnes (RCF), crude protein (CP), casein (CAS), true protein (TP), fat/true protein ratio (F/CP). Selected differences were: FAT (H1 3.68 ? 0.77; H2 3.99 ? 0.93%); CAS (H1 2.50 ? 0.27; H2 2.59 ? 0.29%); TP (H1 2.99 ? 0.30; H2 3.09 ? 0.33%). Other 16 milk parameters (e.g. SCC (H1 289 > 210 103.ml-1 H2), urine, ratio of urea nitrogen in the non protein nitrogen, acetone, pH and rennet curds firmness) were influenced insignificantly (P>

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientia Agriculturae Bohemica

ISSN

1211-3174

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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